Electrically-operated gas-burner.



' Nu. 679,:97. Patented July 23, neon.

H. w. WEBB.

ELECTRICALLY OPERATED GAS BURNER.

(Application filed Apr. 27, 1901.)

(No Model.)

ilIllll' mm m INVENTOR ATTORNEY UNITED STATES PATENT OFFICE.

HOLSTEIN W. WEBB, OF COLUMBUS, OHIO.

ELECTRlCALLY-OPERATED GAS-BURNER.

SPECIFICATION forming part of Letters Patent N 0. 679,197, dated July23, 1901.

Application filed April 27, 1901.

To all whom it may concern:

Be it known that I, HOLS'IEIN W. WEBB, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented a certain new and useful Improvement in Electrically-OperatedGas- Burners, of which the following is a specification.

My invention relates to electrically-controlled gas-burners of thatclass in which the gas-burner valve is adapted to be opened. and closedthrough the closing of an electric circuit.

The objects of my invention are to provide an improved construction ofvalve operating and controlling mechanism of this class, to so constructthe valve-operating parts as to insure a positive operation of the same,to combine therewith improved means for preventing overthrow of thevalve, and to produce other improvements the details of construction andarrangement of parts of which will be more fully pointed outhereinafter. These objects I accomplish in the manner illustrated in theaccompanying drawings, in which Figure 1 is a sectional view through thecasing of my device, showing therein in elevation a portion of theburner-tube having my improvements thereon. Fig. 2 is a View inelevation of said burner-tube and operating mechanism, said view beingtaken at right angles with that shown in Fig. 1 and with the casingremoved. Fig. 3 is a central vertical section through the burner-tube.Fig. at is a detail view in perspective of the armaturebar and itsvalve-operating arm, and Fig. 5 is a transverse section of the valve online 00 as of Fig. 3.

Similar numerals refer to similar parts throughout the several views.

1 represents a suitable gas-burner tube,and 2 a casing or housing whichis mounted thereon at a desirable point. In constructing the burner-tubel I form therein, on opposite sides of the center of its diameter,longitudinally-arranged gas-passages 3 and 4:, the gaspassage 3 beingadapted to be intersected or partially intersected at a suitable pointbelow the hereinafter-described valve by a set-screw 5, which engages athreaded opening in the tube 1 and the inner end of which is adapted toSerial No. 57,650- (No model.)

enter a socket 5 on the inner side of the passage 3. The lower end oftheburner-tubel is adapted to be screwed or otherwise secured inconnection with a gas-supply pipe or tube. Formed in the tube 1 andintersecting both the gas-passages 3 and 1 is a conical valveopening 6,within which is adapted to fit and rotate a correspondinglyshaped valve7. This valve is provided at its larger end with an outward extension orshort stem 7 on which is carried inner and outer ratchetwheels 8 and 9,the teeth of one of said wheels inclining in the opposite direction fromthose of the other. Formed through the body or conical portion of thevalve are ports 10, these ports or passages intersecting each othercentrally, as indicated in Fig. 5, and being so arranged that a partialrotation of the valve will bring one of the same into or out ofcommunication with the gas-passage 1. At the point where the valve-body7 intersects the passage 3 said valve is provided with a peripheralgroove 11, thus providing a continuous communication between the upperand lower or outer and inner portions of the passage 3. The outer orsmaller end of the valve is formed with a peripheral groove 12, withwhich engages the upper end of a spring-strip 13, the lower end of whichis secured to the tube 1, this spring serving to normally hold the valvein proper engagement with the valve-opening 6. Within the casting 2 andon one side of the burner-tube 1 are supported, from a fixed plate 14 orany other suitable manner, the upper end portions of the spools or coils15 of a two-spool elec tric magnet, the latter being connected, throughthe medium of wires 16, through the usual battery and circuit-closingbutton.

(Not herein shown.) Beneath the magnetspools I fulcrum to theburner-tube or otherwise an armature-bar 17, the latter having formedtherewith on its rear or inner side near one end an arm extension18,from which rises a fixed bar or standard 19, with the upper end ofwhich is pivoted one end of a substantially horizontal pawl-arm 20. Inconstructing this pawl-arm I provide the outer end thereof, as indicatedmore clearly in Fig. 4 of the drawings, with a downturned and hook-likepawlfinger 21 and with lateral downwardly-extending guide or stop ears22. These ears 22 are adapted to loosely embrace opposite sides of thetoothed portion of the ratchet-wheel 8, while the hook-finger 21 dependsin the path of the teeth thereof. I also provide the armature-bar 17,adjacent to its junction with the arm 18, with an upwardly-proj ectin gstoppin 23.

In utilizing the herein-described invention the set-screw or valve-screwis ordinarily;

so turned as to permit of the continuous flow throu ghthe passage 3 of acomparatively small amount of gas, thus permitting a continuous thoughsmall light at the burner with which ment of the bar-body 17 it will beseen that a corresponding downward movement of the bar 19 and rearwardmovement of the paWlarm 20 will occur, thelatter resulting, through theengagement of its tooth or hook 21 with one of the teeth of the ratchet8, in rotating the valve 7 until the ends of one of its ports 10 is incommunication with the passage 4:,

thus providing a desirable supply of gas to the burner through saidlast-named passage.

Owing to the fact that the armature-bar has its greater weight in itsbody portion 17 or in front of its pivot-points, it is obvious that thebreaking of the circuit through the magnet will result in said bardropping by gravity and the pawl-arm assuming a position permitting itto engage another of the teeth of the ratchet 8. It is obvious .that asecond operation of the device as above described will result in somoving the valve as to bring either one of the ports 10 out ofcommunication with the passage 4:, thus reducing the light at the burnerto a minimum. In the rapid operation of the pawl-arm 20 it has beenfound that a tendency exists toward an overthrow or too great movementof the valve 7. In order to avoid this tendency toward overthrow, I haveprovided the stop-pin 23, which when the armature-bar 17 is elevatedcomes into contact with a tooth of the outer ratchet-wheel 0 and servesto stop the valve against further or undesirable rotation.

From the construction and operation herein described it will be seenthat simple, reliable, and eitective means are provided for 0perating agas-burner valve which will insure a positive movement and stopping ofthe latter at the proper points.

Having now fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

In an electrically-operated gas-burner, the combination with aburner-tube having passages Sand 4 therethrough and an adjustablevalve-screw adapted to intersect said passage 3, of a rotatable valveintersecting said passages, said valve having a peripheral recess inconstant communication with the passage 3 and ports through said valveintersecting each other at right angles, ratchet-wheels 8 and 9 carriedon said valve, a pivoted armature-bar having a pivoted pawl-carrying armadapted to engage the teeth of one of said ratchet-wheels and a pin 23projecting from said armature-bar and adapted when said bar is elevatedto contact with a tooth of the remaining ratchet wheel, substantially asspecified.

HOLS'IEIN W'. WVEBB.

In presence of C. O. SHEPHERD, W. L. MORROW.

